Selective projector and sound reproducer



June 22, 1943.

F. VON MADALER SEL'ECTIV PROJECTOR AND SOUD REPRODUCER Filed Apnl 18,194] 5 Sheets-Sheet l @ffm A TTORNE Y.

June 22,*1943.- F 5N MADALERy O 2,322,489

SELECTIVE PROJECTOR AND SOUND REPRODUCER Filed April 18, 1941 5Speets-Sheet 2 5 @@@EE 3 @@@EE 1 @@lll@ Amm' lfunnounnnclnnnnunnuu INVEN TOR. /Zwa//mw wvl/Amun,

BY @2mg y ATTORNEY.

June 22,1943. F VON MADALER 2,322,489

SELECTIVE PROJIICTOR ANDy SOUND REPRODUCER Filed April 1e, 1941 5sheets-sneu s fha/Mw@ mv/AmLf-R,

BY l

June 22, 14943. F. vQN MMMLERA I 2,322,489

SELECTIVE PROJECTOR A-ND SOUND REPRODUCER June 22, 1943-. F. voN MADALERv 2,322,439

` SELECTIVE ROJECTOR AND SOUND R-EPRODUCER Filed April 1a, 1941 5sheets-sheet 5 Patented .lune 1943 sELEc'rrvE raoJEc'ron AND soUNaEPaonUcEn Ferdinand von Madaler, Los Angeles, Calif.

Application vApril 18, 1941. Serial No. 389,182

V9 Claims. (Cl. Sii-162) This invention pertains to a compact, simpleand eilicient entertainment device adapted to project motion picturesand reproduce ,sound in synchronism with the projection of motionpictures, the device being characterized by its ability to project andreproduce selectively any desired vmotion picture carried upon lmcontained in the machine. The invention is also directed to a novelcombined motion picture and sound record film, said film bearing aplurality of separate motion pictures and their corresponding sound re-vcordings.` Moreover, although the device described hereinafter isparticularly designed i'orv use as a coinoperated machine for use incafes, restaurants, etc., thev apparatus may also be employed in theproduction and reproduction of motion picture iilms for use in theaters,in the home,

etc.

` Although prior workers in this eld have previously disclosedcoin-operated motion picture projectors including devices forreproducing sound in synchronism with the pictures, they have notprovided means whereby the operator could select a desired subject andhave that particular subject reproduced. The present invention permitspreselectionto take place, so that the operator is not obliged to seeand listen to a vention. In order to facilitate understanding, referencewill be had to the appended drawings, in which:

Fig. l is a plan view of one form oithe mech- Fig. 2 is anvendelevation. Fig. 3 is a plan view of a portion of film adapted for use inthe apparatus.

Fig. 4 is a partly diagrammatic representation through the illmadvancing, projecting and pickup devices embodied in the apparatus.

Fig. 5 is a longitudinal vertical section taken along plane V-V 'of Fig.2.

Fig. 6 is a side elevation.

Fig. 7 is a transverse section taken along plane VII--VIIof Fig..l 6. l

Fig. 8 is an enlarged side view of the sound l mask and its actuatingmechanism.

given subject or to whatever subject matter is at that moment inposition for reproduction through the unit.

Moreover, the prior devices have required long lengths of film,rendering the devices bulky and unsatisfactory. The present inventioncontemplates a novel arrangement of motion picturesy and soundrecordings upon a single strip of continuous iilm whereby relativelylong lengths of nlm are available for sound track purposes (therebypermitting more accurate and better sound reproduction), whereas thetotal length of rllm employed for a given lmotion picture is appreciablyshorter than the total length of lm employed for a corresponding soundrecording.

An object of the present invention, therefore, is to disclose andprovide a novel arrangement of motion pictures and sound recordings upona stripvoi'. film. A further object is to provide a sim`ple,-inexpensive and foolproof mechanism wherebyany desired motionpicture out of a number carried by a single strip oi' filmmay beexhibited and a corresponding sound record reproduced.

Other objects, advantages and uses oi' the in- 4vention will becomeapparent from the following descriptionof an exemplary form of the in-Fig. 9 is a wiring diagram showing the circuit employed in selectivelyoperating the apparatus.

It is to be understood that the apparatus hereinafter described may becontained in a' suitable case or housing of any desired size orconguration. A portion o1 the wall of such housing will be made offrosted Celluloid, glass or other translucent material upon which themotion pictures may be projected for exhibition. Suitable amplityingland sound reproducing equipment will also be contained within suchhousing. A coin slot anda series of selector buttons will also becarried by the housing or in a remote control box so as to permit anoperator to select a desired motion picture and energize the machine.Obviously the description given hereinabove is applicable to all uses ofthe devices embraced by this invention which are directed to their usein cales, etc. As

previously stated, the device and the film may be employed for otherpurposes, such as advertising etc.

The mode of operation and purpose oi the invention will become apparentmore readily by.- ilrstconsidering the type of lm employed in thedevice. By referring to-Flg. 3 it will be noted that the nlm l isprovided with a plurality of longitudinally 'extending picture areas A,B and C. Each of these longitudinally extending picture areas carriestwo or more motion pictures. I'br example, the area A is shown-carryingtwo sets yof pictures, pictures No. l representing one motion picture,whereas the pictures bearing the numeral! represent a second motionpicture, al-

ternate frames ot vpicture area A thereby constituting a series ofmotion pictures. Three instead of two motion pictures may be carried ona single picture area, ii desired, a succession of triads thus formingthe entire picture area A. In Fig. 3 the picture area B carries motionpictures 3 and 4, whereas picture area C carries the motion pictures 5and 6. As a result, the single strip of tllm l carries six separate anddistinct motion picture subjects.

Upon the same strip of film I and adjacent the picture areas A, B and C.six sound tracks or sound records are shown identified by the numerals Ito 6 inclusive. v

It is to be noted that the bases oi' the individual pictures shown inFig. 3 are parallel to the lon gitudinal edge of the strip film I,although the bases may be transverse to the film. Each ot" the soundrecordings, such as the sound recording I, extends substantially thelength of the entire film. This length exceeds the length of a. motionpicture such as the motion picture t, since the longitudinal length of aulm in a given picture area, such as area A, not only includes themotion picture 2 but also includes the motion picture l.

Generally stated, the apparatus to which this invention is directedincludes a stationary base and a carriage movable on such base. The filmadvancing mechanism is mounted upon the carm riage and is designed topass a iilm in liront oi a projector and in operative relation to aphotoelectric or other reproducing pickup. The projector is providedwith a mash at 'the projection gate whereby only one of the pictures maybe pro jected at a given time. Means are provided lto move the carriagewith respect to the mask. in such manner that any desired series oipictures may be caused to be projected, thereby bringing that portion fthe film bearinr.;` the desired pic tures into projection relationshipwith the sate and projection apparatus. `Coricurrently with the movementof the carriage to bring; the picture into proper projection relationwith the 'projection assembly, masking means uncovers the cornresponding sound track. so that 1when it is desired to project motionpicture lilo. 3, forexample. the film is moved so that pictures tcooperate with the projection assembly and the sound mask uncovers soundrecording 3 so as to permit the pickup to only reproduce the sound trackcorrelated with the motion picture 3.

The apparatus, preferably mounted on a base 2, is provided with aselector motor 3. .A carringe, generally indicated fl, is movablysupported upon the base 2 and in the form of de vice illustrated, thecarriage l is mounted upon rollers and 6 cooperating with guide railsformed in the base 2. Adjustable stop means 'l may be carried by thebase for the purpose of stopping the carriage at its inner limit oftravel.

The carriage l! is provided with a driving motor 8 adapted to move theiilm l through a picture projectiongate, generally indicated at Ill, andalso into operative relation with a photo cell or pickup il. The film lmay, es previously stated, be in the form of a continuous loop 4ted intoand out of a housing or reel i2 (see 2).

Various driving connections between the motor 8 and the iilm I may beemployed. In the form of apparatus shown, the motor B drives a Vilywheel I3 by frictional contact therewith. The

fly wheel I3 is mounted upon a shaft I4 carrying gearing, generallyindicated at l5, by means of which continuous motion may be transmittedto the sprocket 24 (Fig, 2) and to the sprocket 23. The motor Q may alsobe provided with a driving connection I8' leading to the shaft i6' ofthe intermittent movement I6. The gearing l5 may interlock with theshaft I5 and thereby tie the intermittent movement and the continuouslydriven sprockets to each other so as to prevent any undue displacementtherebetween. The motor 8 may also drive as by chain lil the shuttershaft I9 and the chain 2i) may be used in driving shaft 2l and sprocket22.

The intermittent movement Iii is designed to advance the lm lintermittently between projection apparatus a distance sufficient topermit sequential projection of a desired series of picturesconstituting a photoplay.

That portion of the hlm l continuously moved between sprockets 23 and2-l may pass over a spool 25 mounted upon a shaft carryingr the ilyWheel 2li. This fly wheel is irictionally driven by ilm passing over thespool or pulley The pulley 25 and its correlated fly wheel preventsprocket flutter from undesirably aiiecting that portion of the iilmwhich continuously moves past the reproducing pickup ll. It is to beunderstood that a suitable loop of film is maintained between theconstantly driven sprockets and the intermittently driven sprockets.

The projection assembly may be mounted upon a standard 3il and include alight source Ell, re-

flector 32,1ens and a projection lens dfi. Light :from the source 3l maybe directed upon prism or mirror surface te carried by the standard 3Dso as to direct 'the light through one of the .trames of the film lupwardly into the projection lens 311. The image thus projected may bereflected by another mirror, not shown, onto a viewing screen.

llt will be evident that ii the standard tu ls assumed to be sationary,whereas the carriage il is movable in a direction transverse to thedirection oi the movement of the film, then film i may be 'brought intoposition to project motion pictures l, t or t (assuming that theprojection as sembly is in starting position for series or motionpicture l). In order to permit the projection of motion pictures fi, ilor the carriage il will have to be moved transversely as well aslaterally. Means for moving the carriage ll transversely may beprovided, but in the embodiment shown, the entire standard lili and theprojection assembly carried thereby is moved transversely to themovement of the carriage lill by means of a solenoid which actuates anarm El connected to the standard @il (in the particular instance shown,to that portion of the standard which supports the rerlector 32). .ldash pot lill may be associated 'with the arm for the purpose ofpreventing jarring of the light source and optical system. The dash potis shown provided with an adjustable bleeder 39. The solenoid and itsappurtenances are firmly hired to the base 2. A spring il may be usedfor insuring return of the standard .Till and projection assembly to theinitial position.

The reproducing pickup generally indicated at ll is also firmly attachedto the carriage il and may :include a light source di, a lens Gil and aphotoelectric or other responsive device 33. The film may be caused topass over a curved member @lil provided with a reproducing slot'adaptedto expose all of the sound tracks carried by the illm. A movableselector mask :l5 having a slit equivalent to the width of but one soundtrack is slidably mounted in operative relation to the slitted .surfacelul for the purpose of selectively exposing a desired track to thepickup device. The selector mask 45 is attached to a frame 1H movableupon a keyway 8 which is firmly held by a standard opposite end of thecoil 50.

-tive relation with sound track 3.

49 extending from the carriage 4. Carried by the frame 41 is anelectromagnetic coil 58 and movably positioned within the coil 50 is anarmature pin I. The movement of the pin 5I may be controlled by a limitscrew 5,2 attached to the frame 41 and by another limit screw 53 atachedto the The armature pin 5I is provided with a lug or extension 54grasped by the bifurcated end of an actuating lever 55 pivoted at 56,the lower end of the lever 55 extending downwardly so as to engage a pin51 carried by the base 2. Movement of the carriage 4 thereby causes thelever 55 to pivot at 56 and move the armature 5I into contact with stopscrew 52 and thereby move the selector mask 45.

By again referring to Fig. 3, it will be noted that the centers ofpictures I and 3 are spaced a greater distance than the correspondingsound tracks I and 3. This difference in movement must be taken-intoconsiderationin placing the pivot 56. Moreover, it is to be noted thatin the event itis rst desired to reproduce motion picture I and then itis desired to reproduce motion picture 2, no lateral movement of thecarriage 4 is necessary, but it is necessary .to shift the selector mask45 so as to cause the pickup to reproduce sound track 2. When it isdesired to move the mask 45 without moving the carriage 4, coil 50 isenergized and moves bodily, thereby moving the frame 41 and selectormask 45 until the armature pin 5I contacts the stop screw 53. Duringsuch movement the armature pin 5I is stationary, since it isheld rigidby the bifurcated end of lever 55. At the end of such movement the endof stop screw 52 would have moved away from the opposing end of armaturepin 5I, so that in the event the third motion picture, No. 3, is to bereproduced and the carriage moves into position, lever 55 will rst movethe armature pin into contact with stop screwv 52 before then moving theframe 41 and selector mask 45 into opera- The spring 56' returns thearmature to its original position when the solenoid is deenergized.

Movement of the carriage 4 is accomplished Y by means of an externallythreaded driven member 68 cooperating with an internally threaded nut 6Iattached to the carriage 4. The driven member 6I) is journaled in abearing 62. The driven member 60 may be provided with a disc 63 having afriction face in contact with a spiral gear 64 journaled on the drivenmember 60 and held against the friction disc by means of a spring 65.The spiral gear 64 is driven by a worm 66 which is driven by theselector motor 3. The

disc 63 may be provided with a pin 61 adaptedv to 'engage apivoteddetent 63 mounted upon the base 2. The detent 68 may be caused tomove down and to release the pin 61 under the influence of a relay 10.

The operation of the device may now be best understood by consideringthe operating circuit and wiring diagram shown in Fig. 9. In Fig. 9 theselector motor 31s shown as a series woundalternating current motorcapable of being reversed by change in the direction of current suppliedto the armature in relation to the field coils. Relay is shown inoperative relation to the detent 66 .for locking the drivenI member.Relays or solenoids 86 and 59 areindicated, these actuating theprojection assembly and selector mask on the pickup respectively.

Since the device should be capable of operation from a remote control,dotted lines 1I indicate the control buttons and coin chute which CTI V4are indicated at 11, 18 and 19 and are also shown in Fig. 1. A. filmlcut-out switch is indicated at 81, and this switch, together with line88 and resistance 89, constitutes a holding circuit for relay 13. Energymay be supplied by leads 90 and 9I through a master control switch 92 toa transformer having output lines 93 and 94. The lines 90 and 93 may bejoined to form a phantom circuit involving line 95.

It is to be understood that when the device is at rest, that is innormal position, the carriage, projection assembly and selector mask arein position to project and reproduce motion picture No. I'. The lm Inear the end of the motion pictures carried by such lrn is provided witha notch 81 (Fig. 3) which isadapted to cooperate with the movableelement of switch 81, thereby opening the switch 81 and breaking theholding circuit involving line 88 and resistance 89 and causing theshifting relays togo back into the original position for projecting andreproducing motion picturevNo. I.

If it is assumed that the apparatus normally returns to a position wherepicture No. I is shown, there is no need for a selector switchcorrelated with picture No. I, but forpractical purposes, such selectorswitch is indicated at 8l. Also it is not connected to the circuit sincethere is :no need for such switch other than the practical one that anoperator, will want to perform some act to assure the projection ofpicture No. I. If, therefore, the operator closes switch 8I and thenintroduces a coin into the chute, the switch 12 will be closedmomentarily. Current will then ilow through the master relay 13 by wayof line 94 and lines 95 and 96.

Fig. 9 shows the switches 14, 15 and 16 in their normal position, but assoon as the relay 13 is energized, the arms move toward the left,opening the contacts now shown closed and closing the contacts-on theleft of the movable arms. The relay 13 is maintained in energizedcondition even though the coin has left switch 12 by reason of theholding circuit involving resistance 89, line 88 and switch 81, currentbeing supplied to the relay by line 94, then through the holdingcircuit, line 91, switch 16 ani line 95. Simultaneously, the closing ofswitch supplies current to the motor 8 and projector light 3|, currentflowing from line 90 to line 95 and through switch 16 and line 98through switch 99 and line |09 to the motor, the return line beingindicated at IUI. i

When the movable armor vroller of switch 81 engages the notch 81 in theedge portion of the film I (at the end of the motion picture being.projected) the switch 81 will open, thus breaking the holding circuitassociated with the master relay 13 and permitting the switches 14, 15and 16 to return to the initial position shown 4in Fig. 9. In suchposition, current supply to leader connects the two ends ofthecontinuous loopoffllm I.

When it is desired to project motion picture 2 selector switch 82 isclosed and when a coin is introduced so as to close switch 12, theholding master relay 1311s again energized so as to actuate the triplepole, double throw switches 14, 15 and 16, and the holding circuit isenergized. When selector switch 82 is closed, however, then it will benoted that relays 36 and 50 are energized, these relays being suppliedwith current by lines 94, |02, |03 through switch 82 and line |03,switch 16 and return lines 95 and 93. Energizetion of relay or coil 3Swill move the entire projection assembly into position to permit theprojection of motion picture No. 2, whereas energization of the coil 50moves the selector mask i5 into position above sound track 2. When, atthe end oi the nlm, the movable contact 81 again enters the cut-out 81in the edge of nlm i, the switch 31 is opened, breaking the holdingcircuit, opening :switchI 16 and thereby de-energizing lthe relays 36and 50, discontinuing the supply of current to the projection motor 8and permitting the projection assembly to return to initial position byreason of spring 40.

When the operator desires to project motion picture No. 3, selectorswitch83 is closed and when the coin-actuated switch 12 is momentarilyclosed, master relay 13 is again energized and the holding circuitenergized. Current is also supplied to the selector motor 3 by line 95through switch 15,1ines |05 and |06, switch 83 and the line |01, limitswitch 11 and line |00 to the motor 3, the return circuit including lineH0, line III, switch 14, line ||2, the eld coil of the motor, line ||3and lines llt and |0|. Relay 10 is also energized, thereby unlocking thedetent 60 so as to permit the motor 3 to impart rotation to disc I3 anddriving shaft 60. At the same time, switch 03 is opened, therebybreaking the circuit to the driving motor 8 and preventing the projectorfrom being operated while the carriage l is being moved by the selectormotor 3. Limit switch 11 will be opened by moving carriage I when thecarriage approaches the desired position and the supply of current tothe motor 3 will be discontinued. Simultaneously, relay is de-energized,permitting the detent 60 to move upwardly under the influence of spring68' (Fig. '1) so as to engage the stop pin 61 and positively stop thecarriage in proper position. Switch 99 is also simultaneously closed soas to energize the driving motor 8 and the projection lamp 3|. When theprojection of picture No. 3 has been completed, switch 01 opens,releasing the holding circuit and thereby returning switches 1l, 15 and16 to initial position. Current will still be supplied, however, byline95 through switch 15, line i IB, switch 1I and line H0 to the selectormotor 3, but it is to be noted that the direction of the flow of currentthrough the motor armature is now reversed so that the motor is drivenso as to return the carriage to its initial position. As soon as thecarriage returns to initial position, limit switch 1l automaticallyopens, 'stopping the rearward progress of the carriage in its initialstarting position. Similar operations take place when s elector switches05 and 36 are closed.

It will be understood by those skilled in the art that numerous changesand modications may be made from the particular form of apparatus shownin the drawings without departing from the inventive concept hereindisclosed. Although Fig. 3 shows all of the Vpicture areas A, B and C inadjacent relationship whereas the corresponding sound tracks occupy'acommon longitudinally extending area, the present invention contemplatesthe placement of a plurality of motion pictures in each picture area,the various picture areas being then spaced by longitudinally extendingsound tracks, pictures and sound tracks in alternate relation extendingtransversely across the film strip.

The device of this invention permits the projection of a plurality ofmotion pictures without changing the position of the projected pictureswith respect to the frame lines of a stationary screen by providingmeans whereby any desired projection portion of a film strip may bebrought into projection relationship with a stationary projectionassembly.

I claim:

l. A combined picture projector and sound reproducer, including:a'stationary base; a movable carriage on said base; a continuous reel ofiilm provided with a plurality oi longitudinally extending, transverselyadjacent picture areas, said film also carrying a plurality oflongitudinally extending sound recordings corresponding in number to thenumber of motion pictures on said film, said sound recordings being inparallel relation to each other adjacent one edge of the film; areproducing pickup on said carriage; a motor operably associated with a.film moving means mounted on said carriage and adapted to move lm fromsaid reel and through said reproducing pickup; a stationary projectorassembly in operative relation with film on sai.'l lm moving means:motor means for moving the carriage to place a desired longitudinallyextending picture area in projecting relation to the projector assembly;movable masking means in operative relation to the reproducing pickupand means for moving said masking means in timed relation to themovement oi said carriage to selectively reproduce the sound recordcorresponding to the selected picture area, the extent of movement'ofthe masking means being smaller than ythe extent of movement of thecarriage.

`2. A combined picture projector and sound reproducer, including: astationary base; 1a movable carriage on said base; a continuous reel offilm provided with a plurality of transversely adjacent, longitudinallyextending picture are, said illm also carrying a plurality of soundrecordings corresponding in number to the number of motion pictures onsaid lm, said sound recordings being parallel to each other adjacent oneedge of the lm; a reproducing pickup on said carriage; a motor operablyassociated with a nlm moving means mounted on said carriage and adaptedto move film from said reel and through said pickup; a stationaryprojector assembly in operative relation with nlm on said film movingmeans; motor means for'moving the carriage to place a desiredlongitudinally extending picture area in projecting relation to theprojector assembly; movable masking means in operative relation to thepickup; means for moving said masking means in timed relation to themovement of said carriage, means for controllably reducing the extent ofmovement of the masking means to an extent smaller than the extent ofmovement of the carriage, to selectively reproduce the sound recordcorresponding to the selected picture area; and an electrical circuitincluding a coin-operated switch and a plurality of selector switchescorresponding to the laterally adjacent picture areas on said film forselectively energizing the carriage moving lmeans and film moving means.

3. A combined picture projector and sound reproducer, including: astationary base; a movable carriage on said base; a continuousreel ofiilm provided with a plurality of transversely adjacent, longitudinallyextending picture areas, said iilm also carrying a plurality of soundrecordings corresponding in number to the number of motion pictures onsaid film, said sound recordings being parallel to each other andadjacent one edge of the iilm; a reproducing pickup on said carriage; amotor and a film moving means operably associated therewith, both beingmounted on said carriage and adapted to move iilm from said reel andthrough said pickup; a picture projector assembly mounted on said baseand extending into operative relation with film on said film movingmeans; motor means for moving the carriage in a direction transverse tothe movement of iilm through said film moving means .to place a desiredlongitudinally extending picture area in projecting relation to theprojector assembly; movable masking means in operative relation to thepickup and means f or moving the masking means in timed relation to themovement of said carriage to selectively reproduce the sound recordcorresponding to the selected picture area1 said last named meansincluding means for reducing the movement of the masking means to anextent smaller than the extent of movement of the carriage.

4. A combined picture projector and sound reproducer, including: astationary base; av movableA carriage on said base; a continuous reel offilm provided with a plurality of transversely adjacent, longitudinallyextending picture areas, said nlm also carrying a plurality of soundrecordings corresponding in number to the number of motion pictures onsaid lm, said sound' recordings being parallel to each other andadjacent one edge of the film; a reproducing pickup on said carriage; amotor and a film moving means associated therewith, mounted on saidcarriage and adapted to move lm from said reel and through said pickup;a projector assembly mounted on said base and extending into operativerelation with nlm on said lm moving means; motor means for moving thecarriage in a direction transverse .to the movement of film through saidfilm moving means to place a desired longitudinally extending picturearea in projecting-relation to the projector assembly; movable maskingmeans -in operative relation to the pickup; means for moving the maskingmeans in timed relation to the movement of said carriage to selectivelyreproduce the sound record corresponding to the selected picture areaand anelectrical circuit in- 'cluding a coin-operated switch, aplurality of selector switches corresponding to the laterally ad. jacentpicture areas on said film and limit switches opened by movement of thecarriage for. stopping the same, for selectively energizing the carriagemoving means and iilm moving means and returning the carriage to initialposition.

5. A combined picture projector and sound reproducer, including: astationary base; a movable carriage on said base; a continuous reel offilm provided with a plurality of laterally adjacent, longitudinallyextending picture areas, said film also carrying a plurality of soundrecordings corresponding in number to the number of motion pictures onsaid film; a pickup on said carriage; a lm moving means on said carriageadapted to move iilm from said reel and through said pickf up; aprojector. assembly on said base and extending into operative relationwith film on said nlm moving means; motor means for moving the carriagetransversely to the direction of movement of film thereon to place adesired longitudinally extending picture area in projecting relation tothe projector assembly; means for moving the projector assembly in thedirection of movement of the iilm on said carriage to place a givenpicture within a longitudinally extending picture area in projectingrelation to the projector assembly; movable masking means in operativerelation to the pickup for selectively'reproducing a desired soundrecord and means for moving said masking means in ltimed relation to themovement of said carriage and projector assembly to selectivelyreproduce the sound record corresponding to the picture.

6. In a combined picture projector and sound reproducer, the combinationof: a stationarybase; a laterally movable carriage on said base, saidcarriage including a projection gate, a reproducing pickup, a motor andmeans, operably related to said motor, for intermittently moving filmpast said gate and continuously past said pickup in a directiontransverse to the movement of the carriage; said reproducing pickupincluding a movable masking element, means for moving the maskingelement in timed relation to the movement of said carriage, the extentof movement of the masking means being smaller than the extent of,movement of the carriage; a projection assembly mounted on said base andincluding a light source, a prism on one side of the iilm at saidprojection gate, a condenser lens between said light source and prismand a projection lens adapted to receive light from said prism. y

7. In a combined picture projector and sound reproducer, the combinationof: a stationary base; a laterally movable carriage on said base, saidcarriage including a picture projection gate, a reproducing pickup, amotor, and means associated therewith for intermittently moving nlm pastsaid gate and continuously past said pickup in a direction transverse tothe movement of the carriage; a projectionl assembly mounted on saidbase and rincluding a light source, a prism on one side of the film atsaid projection gate, a condenser lens `between said light source andprism and a projection lens adapted to receive light from said prism;means for selectively moving said carriage within predetermined limitstoreproducer, the combination of: a stationary base; a laterally movablecarriage on said base,

.said carriage including a projection gate, a reproducing pickup andmeans for intermittently moving film past said gate and continuouslypast said pickup in a direction transverse to the movement of thecarriage; a'projection assembly mounted on said base and including alight source, a prism on one side 'of the film at said projection gate,a condenser lens between said light source and prism and a projectionlens adapted to receive light from said prism, and a movable maskingmeans operably associated with said reproducing pickup for selectivelyreproducing a desired sound record carried on said film and means formoving said masking means in timed relation to the movement of saidcarriage.

` 9. A combined picture projector and sound reproducer adapted'toselectively project pictures and reproduce sound correlated therewith bytransmission of light through a film provided with a plurality oflongitudinally extending, transversely adjacent picture areas, and aplurality of longitudinally extending sound recordings in pai'- allelrelation to each other adjacent one edge of such nlm, including. a base;a movable carriage on said base, said carriage being provided with apicture projection gate, a reproducing pickup, means for intermittentlymoving illni past said gate and continuously past said pickup in adirection transverse to the movement oi' the carriage, and a motoroperably connected with said nlm moving means; a projection assemblymounted on said base and including a light source and a projecting lens,said projection asscmby being in operative relation to the pictureprojection gate on said carriage; means for moving the projectionassembly within predetermined limits in the direction of movement of thefilm; motor means for moving the carriage within predetermined limits;and a masking means mounted on the movable carriage in operativerelation to the reproducing pickup, and means for moving the maskingmeans when said projection assembly is moved.

FERDINAND von MADALElL.

